Spring Flowers 2013 - 100mm Focotar enlarger lens for reflected ultraviolet photography

Today about the same early spring Irises shot in reflected ultraviolet photography that I had shown before when shot with the Cerco quartz fluorite lens. Filter used was my "work horse" UV filter, the Baader-U filter. Lens used was an old 100mm Focotar enlarger lens. Light source was the last sunrays of that wonderful spring Sunday. All shots were done at about f8. So, on to the results now...

[click on image to see a larger one]


Visible light image:
 

UV image using Baader-U filter (approx. 320-395nm, effective peak approx. 375nm):
 

VIS-IR image using no filter:
 



Visible light image:
 

UV image using Baader-U filter (approx. 320-395nm, effective peak approx. 375nm):
 

VIS-IR image using no filter:
 



Visible light image:
 

UV image using Baader-U filter (approx. 320-395nm, effective peak approx. 375nm):
 

VIS-IR image using no filter:
 

So, I hope you enjoy seeing some early spring flowering Irises!


Stay tuned, more will follow on that fascinating subject...

More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos

Spring Flowers 2013 - Cerco 94mm Quartz Fluorite lens for reflected ultraviolet photography II

Today about some early spring Irises in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter. Lens was a CERCO 94mm quartz fluorite lens. Light source was the last sunrays of that wonderful spring Sunday. All shots were done at about f5.6. So, on to the results now...

[click on image to see a larger one]


Visible light image:
 

UV image using Baader-U filter (approx. 320-395nm, effective peak approx. 375nm):
 

VIS-IR image using no filter:
 



Visible light image:
 

UV image using Baader-U filter (approx. 320-395nm, effective peak approx. 375nm):
 

VIS-IR image using no filter:
 



Visible light image:
 

UV image using Baader-U filter (approx. 320-395nm, effective peak approx. 375nm):
 

VIS-IR image using no filter:
 

So, I hope you enjoy seeing some early spring flowering Irises!


There is a comparative series using teh same flowers shot with an old 100mm Focotar enlarger lens HERE.

Stay tuned, more will follow on that fascinating subject...

More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos

[UV] Iris flower: Baader-U vs Jupiter-U filter for reflected UV ultraviolet photography

Again more about that new Jupiter-U filter of mine. Also those shots were taken today at the wonderfully blossoming Hermannshof, Weinheim, Germany. This time it is about a yellow Iris pseudacorus.

[click on image to see a larger one]

All triptychs are presented VIS left, Baader-U middle, Jupiter-U right:



A quite surprising find, since Iris' are usually not much UV reflective. This one however does quite strongly around 365nm.

Stay tuned, more will follow on that fascinating subject...

More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos